How Ecofriendly Are Wind Farms?

Wind farms have been touted as more environmentally friendly energy sources than coal, oil, and gas. After all, wind turbines produce no air, water, or thermal pollutants, and emit no greenhouse gases. Yet despite producing clean renewable energy, wind farms, according to critics, disrupt the environment, alter habitat, and affect where some wildlife can live. Wind farms are also killing bats and birds by the thousands, although the causes of death are unknown.